Transposer for musical instruments.



No. 810,949. PATENTED JAN. 30, 1906.i

' TI W. KLOMAN.

TRANSPOSER FOR MUSICAL INSTRUMENTS.

APPLICATION FILED MAR.22, 1905.

INVENTR 4hl WITNESSES; y

Unrrnn curas retratar orrion.

No. 810,94?, Specification of Letters Patent. Patented Jan. 30, 1906. appraise ned una 22, 1905. sei-iu in. 251.426,

To il wim/n, may con/ccm.- l mitting or controlling part of the apparatus, 55

'eitknoufnthat i,i` nnononn KLOMAN, usually in the nature of a rotating conducta citizen ci the United States, esiding in New ing drum and perforated insulated music- York, borough of Eroolrlyn, county of Kings, sheet, by a series of electrical conductors 5 and State or bien* York, have made anew and with a series of electromagnets having theil` useful invention in Transposers tor illusie-al armatures operatively connected to the keys 6o instruments, ciZ which 'the followingis speciof a piano when the instrument is a piano-or 'iica'tion with the valves which control the movement- My' intention is directed articularly to or" the air to the pipes or reeds when the in- Io means in the nature of double sets of elecstruiuent is an organ, said conductors being trical conductors provided "ith iuterconbound up or coniined together in cable form 6 5 neet-ing ends symiuetricaliy disposed for efand interconnected at some intermediate footing achangeof the pitch or tone of an elecpoint by a series of plug-switch connections, trically operated or eiectricallycontrolled the arrangement being such that the trans- I5 instrumentsuch as a piano., organ, or the n'iitt'er part of the instrument may be sepalike-vchereby any piece oi' music may bc ratediroin the music-playing part. 7o played upon said instrument in any desired My invention embraces novel means for ef- A key, and it laas ioritsobjects,iiist,the bring- 'footing connection between the two Sets of ing about of this result by simply shifting said electrical conductors and in suoli manner i 2O the electrical connections of the conductms that the adjoining thereof' have the Which convey the current to and through tir* same relative positions, so that they may be 75 electromagnets which operate or control the shifted by rotatii'ig them in either direction individual parts of the musical instrument vin through complete circle, a common returneither direction and to such an extent as to conductor being provided and having inter- 2 5 cause a piece of music prepared for transmisconnecting means centrally located with resion to be played in any desired key, the limilation to the aforesaid electrical conductors 8o tation of such key-changers being dependent such thatI the connections may be effected in upon the number of individual keys in the inany of the entire series of positions. strunient itself, second, to e'll'ect this result Referring now to the drawings in detail 30 in the simplest possible manner and Without and inst to Fig. 1, i will describemyimprovematerially varying the conditions of such ment andthe method of using the same. 1 85 conductors as are noWV used in connection represents a drum of conducting material, with types of electrically operated or conupon which rests a non-conducting perfotrolled music.- playing instruments, such as rated music-sheet of Well-known for1n,3 3 3 3 5 pianos, organs, ctc. being conducting-'fingers sustained by an in- My invention Will' be fully understood by sulating-bar and electrically" connected by 9o referring to the accompanying drawings, in conductors 4, 5, 6, 7, 8, 9, and 10, running to Whichoperating or controlling electromagnetsc of Figure 1 is apartplan, part diagrammatic, the instrument to be actuated, 11 being a 4.o part developed view illustrating its applicacommon return-circuit conductor connected tion and use, the musical instrument to e to. a conducting Contact finger 12, resting 95 oierated or controlled, however, not bei 'f upon the conducting-axle of the drum, and slliown. Fig. 2 is a side elevational vii, ori 1I?, an operating-battery4 the exterior of my improved means with The arts so far described are of Xv'ell- 4 5 which the results referred to are eliccted; and known construction and are only shown iig, 3 is a similar view illustratin vfalso in here for the purpose of illustrating the simroo broken sectional view, the essentiaigcounectplest application of my improvement.. which ing parts of the device, said sectional vieivbe-l I i now be described. The insulated coning taken on the broken line Y Y, Fig. si, and ctors 4 to 10, inclusive, are incloscd in a 5o as seen looking tliereat from right to left in. two-part cable provided with hard rubber or Stile direCtiOn Of the MIOWS: other non-conducting sleevesl-l- 15, and their ro 5 In existing types of electricall) perated adjoining ends are secured,4 respectively, to or controlled pianos, organs, or the hire it 1 male and female parts 17 16, symmetrically customary to connect the electricalwtransor circularly"disposed and iirmly securedl in i l l l l l l r i 

